Calycanthine, the principal alkaloid of the order Calycanthaceae, has been isolated from a species of the genus Psychotria, and is a central nervous system toxin, causing convulsions.

(D-Phe12,Nle21·38,α-Me-Leu37)-CRF (12-41) (human, rat)

OVA Peptide (323-339) represents a T and B cell epitope of Ovalbumin (Ova), which play an important role in the development and development of immediate hypersensitivity in BALB/c mice.